well I don't know why the English translation have missing Chapters but the Japenese and Chinese doesn't have any page missing, they even include the cover page and the content (even put blank pages on if it was a blank page on the manga book itself! o_O).

Why are there missing chapters? XD I guessing...your talking about the gaps. Like Ch.19 - 28 and ch.56 - 69 and 71 - 77 and more. Then, the reason for that I know but if your talking about missing pages in a chapter then... ask the people who do it themselves.

The reason for the gaps, is not that because there aren't any Japanese or Chinese Chapters raws to be translated to English. Rather, it's because each gap of chapters is made by a different translation. If you payed a little more notice on who did these chapters you will notice that Ch.1-7 was translated by ShoujoMagic/DV ( But, these two group stop translating.). A group called Aerie did Ch.8 - 19. Aerie wasn't too fast translating, and in Japan (during that time) , Gakuen Alice was at ch.29 already and up. The Chinese scans of Gakuen Alice was already out. So, this person deside that she and her friend will start translating and doing ch.29 and up. But, she didn't want to get Aerie hurt or mad by take there Manga Project so, she left them a little gap ( The Ch.17 -29 gap ( back in those days, they weren't on ch.19 yet) ) for them to do. The girl and her firend named there J.E. After a while, other small people started to do small chapter, but, they weren't a group. J.E was at ch. 32. They translated fast. But, not fast enough cause in Japan, Gakuen Alice was at ch. 78 and there were Chiense raws for them already. So, another group came to translate ch.70 and +. They didn't want to hurt or get J.E mad either so, they gave them a gap ( ch.32 -70 ( during that time) ). So after ALL the gaps and everything, this lead to many chapters untranslated and full of gaps of untranslated chapters even though, there were chinese raws for every chapter. Some groups were slow so, they still haven't finished translating to close the gap, some were fast and almost finished translating the gap they have. So...TADA~~~ Here's the whole story.